Android Lead Developer Interview Questions

4,321 android lead developer interview questions shared by candidates

started the interview with these questions... * what will happen when you call a kotlin function which takes in a non-nullable parameter from a Java method and passes a null value * How is the performance of native components better than that of hybrid development? why is it suggested * you have a wheel that is running laggy on the UI. how do you check what is wrong?? (all of them are Ui components... so moving the code background thread is not an idea or can they? if so which part will you move?) * how do you improve the performance in the above scenario - what are the advantages of kotlin over java? - why did you start developing using jetpack compose?
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Senior Android Developer

Interviewed at TikTok

3.2
Oct 20, 2024

started the interview with these questions... * what will happen when you call a kotlin function which takes in a non-nullable parameter from a Java method and passes a null value * How is the performance of native components better than that of hybrid development? why is it suggested * you have a wheel that is running laggy on the UI. how do you check what is wrong?? (all of them are Ui components... so moving the code background thread is not an idea or can they? if so which part will you move?) * how do you improve the performance in the above scenario - what are the advantages of kotlin over java? - why did you start developing using jetpack compose?

First-round (2 hrs) was technical. I was asked questions on java fundamentals and Android topics like Fragments and Activity and their Lifecycle, memory management, multi-threading, and my android projects followed by 2 (medium and easy) LC questions (time for LC - 30 mins). The second round (30 mins) was with the manager. This round was also focused on Android and java questions.
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Android Developer

Interviewed at SAP

4.2
Mar 27, 2021

First-round (2 hrs) was technical. I was asked questions on java fundamentals and Android topics like Fragments and Activity and their Lifecycle, memory management, multi-threading, and my android projects followed by 2 (medium and easy) LC questions (time for LC - 30 mins). The second round (30 mins) was with the manager. This round was also focused on Android and java questions.

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